: I have a Watts Regulator Model 25AUB pressure reducing valve (stated range is 25 - 75 lbs) just after the main input valve into my house.: It has a screw adjustment with a locking nut. The city has stated the water pressure in the main on our street is 60 lbs,: but when I recently turned on sprinkler system, there is not enough pressure to reverse the impact sprinkler: heads. I have taken the heads of the system and flushed the line, to no avail. How do I adjust this valve to increase pressure: (screw in or out?) without increasing too much to blow the pressure valve on my hot water heater?

Never mind, found the answer for the Watts 25AUB in the plumbing FAQs. Great website! Thanks!